Last name كارلن (Carlin 
, Karlen 
, Carlon ) , in the entire world, is a common family name. The cognomen كارلن is habitual in Switzerland, where it is quite a common surname, Ireland, and Georgia, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in the United States, Mexico, and the United Kingdom. Very seldom, كارلن is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Carlin | Italy, Mexico, Democratic Republic of the Congo, United States, United Kingdom |
| Carlon, Karlen | Italy, Mexico, France, United States, United Kingdom |